@misc {IOPORT.70194861,
    author       = {Yu, Neng-Hao and Tsai, Sung-Sheng and Hsiao, I. -Chun and Tsai, Dian-Je and Lee, Meng-Han and Chen, Mike Y. and Hung, Yi-Ping},
    title        = {Clip-on gadgets: expanding multi-touch interaction area with unpowered tactile controls},
    howpublished = {UIST, 367-372 (2011).},
    year         = {2011},
    doi          = {10.1145/2047196.2047243},
    identifier   = {70194861},
}